/**
 * Copyright 2011 Honeywell Federal Manufacturing & Technologies, LLC. This material was produced under U.S. Government
 * contract DE-ACO4-01AL66850, Honeywell Federal Manufacturing & Technologies, LLC, (FM&T) with the U. S. Department of
 * Energy for the operation of the Kansas City Plant . The U.S. Government has rights to use, reproduce, and distribute
 * this software.  NEITHER THE GOVERNMENT NOR Honeywell Federal Manufacturing & Technologies, LLC, MAKES ANY WARRANTY,
 * EXPRESS OR IMPLIED, OR ASSUMES ANY LIABILITY FOR THE USE OF THIS SOFTWARE.  If software is modified to produce
 * derivative works, such modified software should be clearly marked, so as not to confuse it with the version available
 * from FM&T.
 *
 * Additionally, this program is free software; you can redistribute it and/or modify it under the terms of the GNU
 * General Public License Version 3 published by the Free Software Foundation. Accordingly, this program is distributed in
 * the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this library.
 * If not, see http://www.gnu.org/licenses/.
 */
package org.braintrain.tapestry.encoders;

import org.apache.tapestry.engine.ServiceEncoder;
import org.apache.tapestry.engine.ServiceEncoding;
import org.braintrain.tapestry.services.MediaViewService;

/**
 * The Tapestry Service Encoder for decoding Media friendly URLs.  These
 * friendly URLs are originally produced in the FileBrowser along with the
 * structure of the Media and FileManageable/MediaDirectory domain Objects. 
 * @author John Ericksen
 *
 */
public class MediaServiceEncoder implements ServiceEncoder {
    
    public final static String MEDIA_PATH = "media";

    public void encode(ServiceEncoding encoding) {

    }

    /**
     * Decodes the friendly URL path /media to the MediaViewService.
     */
    public void decode(ServiceEncoding encoding) {
        String servletPath = encoding.getServletPath();

        if(servletPath.endsWith(MEDIA_PATH))
        {
            String encodingPath = encoding.getPathInfo();
            
            encoding.setServletPath("/app");
            encoding.setParameterValue("service", MediaViewService.SERVICE_NAME);
            encoding.setParameterValue(MediaViewService.MEDIA_PATH, encodingPath);
        }
    }

}
